Manufacturer Repair | Ontario CA
Allison Transmission Repairin Ontario, CA.
At Rapid Diesel Repair, we offer comprehensive services for heavy-duty trucks, trailers, and RVs in Ontario, CA. From preventative maintenance to diagnostics, we keep your vehicles running efficiently. Call us to learn more about our expert solutions.
Truck owners trust Rapid
What’s included
What does it include?
A commercial truck that shifts harshly, hesitates when put in gear, or shows a transmission warning needs a diagnosis before parts are replaced. Rapid Diesel Repair in Ontario, CA services trucks equipped with Allison automatic transmissions.
Allison Transmission Diagnostics
We investigate delayed engagement, shifting problems, leaks, overheating, warning lights, and transmission fault codes. Our technicians inspect the transmission and related electrical and drivetrain components to identify what is causing the complaint.
CALL RAPID DIESEL(909) 701 8755Talk with a diesel repair specialistFluid Service and Internal Repairs
Depending on the transmission and diagnosis, our services include fluid and filter changes, valve body repairs, torque converter work, and transmission rebuilds or overhauls. We review the findings and repair options with you before the work begins.
CALL RAPID DIESEL(909) 701 8755Talk with a diesel repair specialistAllison Models We Service
We service trucks equipped with Allison transmissions, including applicable Allison 1000, 2000, and 4000 Series units. Correct fluid, parts, and service procedures depend on the specific transmission and vehicle configuration.
CALL RAPID DIESEL(909) 701 8755Talk with a diesel repair specialistIf your truck is slipping, shifting unpredictably, or showing a transmission fault, call Rapid Diesel Repair at (909) 701-8755. Provide the truck's year and model, along with the Allison transmission model if you have it, to arrange service at our Ontario shop.
Our process
A clearer path to a fix.
Scan & Analyze
We use advanced diagnostic tools to read codes, live data and system tests.
Find the Real Fault
We go beyond code definitions to identify the true root cause.
Explain & Recommend
We walk you through the issue and repair options before any work begins.
What makes us different
Diesel expertise. Real results.
Based in Ontario, CA, Rapid Diesel Repair is a full service diesel shop focused on accurate diagnostics and dependable repairs.
Experienced Technicians
Hands on experience with diesel trucks and fleet vehicles.
Advanced Diagnostics
We pinpoint problems accurately to minimize downtime.
Quality Parts
Durable components for long lasting repairs.
Clear Communication
We explain the repair and price before work begins.
FAQ
Frequently asked questions
We service trucks equipped with Allison automatic transmissions, including applicable 1000, 2000, and 4000 Series units. The correct fluid, parts, and procedures depend on the specific transmission and vehicle configuration.
Delayed engagement, harsh shifts, overheating, and fault codes can come from the transmission itself or related electrical and drivetrain components. We diagnose the complaint first so parts are not replaced on a guess.
Depending on the diagnosis, our services range from fluid and filter changes to valve body repairs, torque converter work, and rebuilds or overhauls. We review the findings and options with you before the work begins.
We work on light, medium and heavy duty diesel trucks, fleet vehicles, trailers and RVs, including Freightliner, International, Peterbilt, Kenworth, Volvo, Mack, Hino, Isuzu, Ford Power Stroke, Ram Cummins and GM Duramax.
It depends on the truck, the parts and what we find. We diagnose first, then explain the repair options and the price before any work begins, so there are no surprises. Call, text or use the form to get started.
Calling ahead is best so we can plan bay time and parts. If your truck is down, call (909) 701-8755 and we will tell you the fastest way to get it in.
Ready to get answers?
Let’s fix it right.
Accurate diagnostics. Honest answers. Get back on the road faster.